O2 sensors go out at same time?

[Lucid77]

P0132 and p0136 codes together showed up at once. Any reason these could be caused by a single issue. Cat was replaced about 6 months ago and has been running well

 

[Lucid77]

Ok I got home and hooked up my obdii and found there was only one cel code, guy at parts store said there was two.
This one was the O2 sensor bank 1 position 1 high voltage.

Gauges on torque app show this sensor maintaining (most times) a 0.7-0.8 voltage, the second sensor is reading (most times) 0.0-0.1 voltage.

This leads me to believe the first sensor is indeed bad and causing the car to run too rich. Am I on the right track?

 

[XpL0d3r]

Yeah, sounds like a bad sensor to me. I would inspect the plug to make sure it's not damaged, and if not, get an OEM replacement.. NGK or Desno I believe. Don't get the cheap aftermarket ones, many times they cause more issues.

Don't wait too long; if it's running rich you can damage the cat over time.

 

[Lucid77]

I cleared the cel and drove the car for about 3 hours and nothing came back on...??

 

[XpL0d3r]

You might have a sensor starting to go bad then. If it comes back I would look into a replacement. But if not....

 

[Lucid77]

Ok, I drove the car around the block a few times and then parked it in the garage for a week while i went on vacation. I came home and now it won't start. It turns over, but sounds like there is no fuel. Is this a coincidence?

 

[HeX]

Ok, I drove the car around the block a few times and then parked it in the garage for a week while i went on vacation. I came home and now it won't start. It turns over, but sounds like there is no fuel. Is this a coincidence?

Do you mean that you dont hear the fuel pump prime the fuel lines? If so then just check the fuel pump. By the way, you never mentioned what brand of O2 sensors. If your used Bosch then there is at least one issue. Get the OEM brand, NTK (same as NGK).

 

[Lucid77]

Fuel lines just unpressurized and running low on gas [emoji56] I'm an idiot, but I did replace my O2 sensor with a Denso drove around for a few hours and no cel so far. However, no I have to check and Make sure nothing came loose in the exhaust. I have a much louder exhaust around 3-4000 rpm..